Incandescent burner.



N8. 879,849. PATBNTED 11:11.18, 1988. A. G. BELL. 111011111888881 BURNER.

. APPLICATION FILED M8117. 1907.

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A. G. BELL.

INCANDESCBNT BURNER.. APILIOATION FILED MAY 1, 1907.

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AMBROSE G. FELL, OF NEW YORK, N. Y.

INCANDESCE-NT BURNER.

sp'eciaeatiori of Letters Patent.

Patented Feb. 18, 1908.

Application filed lila- 7| 1907- Serial No. 372.439.

To all whom it may concern:

Be it known that I, AMBRosE G. FELL, a citizen of the United States, residing in New York city, in the county of New York and State of New York, have invented certain new and useful .Improvements in Incandescent Burners, of which the following is a specification.

This invention relates to lamps or burners for use with incandescent mantles, especially of the character known as Welsbach mantles, that become incandescent when heated by a Bunsen flame.

One of the objects of the invention is to.

provide an improved lamp or burner of this character in which rays of light will be transmitted practically unobstructed in a direction the opposite to that in which the 'gas iows to and through the mantle. In the case of the ordinary upright mantles, light will be permitted to be transmitted downward and in the case of the so-called` inverted mantle, light rays will be transmitted in the opposite direction, that is vertically upward.

A further object of the invention is to provide in such a device, means whereby a mantle can beattached to either end, permitting the use of the upright or the inverted type of mantle. The burner is also provided with means by which both forms of mantle can be used that are arrangedin vertical alinement the gas being deflected from the mixing tube to be partly transmitted to each end of the burner.

A further object of the invention is to provide a burner in which a member normally transparent, or one which becomes so when heated, is employed on the opposite end of the burner from the mantle, permitting the transmission of light rays in the opposite direction from the mantle.

A further object of the invention is to provide a construction of lamp in which the mixing tube itself leads directly into the burner that is employed for the inverted or the upright mantle or for both.

In the accompanying drawings representing embodiments of the present invention, Figure 1 is a side elevation partly in section of the lamp, with both the upright and the inverted mantle. Fig. 2 is an end elevation of the same. Fig. 3 is a view similar to Fig. 1, but showing the use of the upright mantle only, with means for transmitting the light vertically downward. Fig. 4 is a modification of the lamp shown in Fig. 1 showing the mixing tube connected directly with two burner members. Fig. 5 shows another modification. Fig. 6 represents a group or cluster of lamps similar to the lamp shown in Fig. 1 and Fig. 7 is a plan view of the same.

The burner member comprises essentially a shell or tube having extended transversely therefrom a tube, through which the gas mix ture is admitted to the burner 'from the Bunsen mixing tube. The latter tube may extend transversely to the said transverse tube or it may be a continuation therefrom, that is, practically the mixing tube itself. The burner tube is .supported by the transverse tube so that the burner has its axis in a vertical position. At either, or both ends, of the burner tube, that is, at the top and at the bottom, means are provided for attachment of a mantle to be incandesced by the ignited mixture 5 or if one mantle only, the other end closed by a removable diskor cap containing a disk.

In the construction shown in Fig. 1, the burner member comprises a tubular member 11 from one side of which extends a trans verse tube 12 by which the tube 11 is supported in a vertical position. The tube 12 leads into an upright mixing tube 13 of the usual Bunsen type; which tube is shown as fitted on a valved bracket 14. Both ends of the burner 11 are open, and at the upper end, the usual upright mantle 15 is attached.

At the other end of the burner 11, an in-A verted mantle 16 is attached that will transmit its rays downward as well as laterally.

At the middle portion of the burner 11, is a valve 17, that may be made of transparent material such as a mica disk. When the valve is in a vertical position, the gas from the mixing tube will flow in from the trans verse tube 12, part of it supplying each of the two mantles. The valve 17 is operated by a head 18 extending outside of the burner 11. But where it is desired to use only the upright mantle 15, the burner 11 is turned to the position shown in full lines in Fig. 1, and the inverted mantle 16 is removed, and a cap 19 shown in Fig. 3 is applied to the lower end of the burner 11. This cap contains a disk or diaphragm of transparent material, such as mica or suitable refractory glass. A similar construction is shown in Fig. 3 in which thevalve 17 is omitted, and a mica disk 21 is placed in the lower portion of the burner 22. From this it will be seen that the rays of light from the interior of the mantle are transmitted vertically downward, without obstruction, as is the case with the Welsbach type of burners at present in use. Where a gauze disk is used at the top of the burner member to diffuse the gaseous mixture, and to prevent ignition of the gas be- -low the'mantle, a small portion of the light `mantle, and therefore the rays would diverge to project downward in allldirections possible'through the interior of the burner tube. It will'be further observed that the burner 11 is of less external diameter than the internal diameter of the mantle, the usual gallery for supporting the chimney being dispensed with, so that rays being transmitted downward in an inclined direction at various angles ,from the outside of the mantle, will be transmitted downward at all angles up to practically the vertical. These rays are not obstructed except in the comparatively small Zone occupied by the transverse tube 12 and its supporting member.

In Fig. 4 is shown a slight modification in which the mixing tube is an integral part of the transverse tube 12, in fact the mixing tube 24 in this case is directly connected with the burner member 25.

In Fig. 5 is shown a slight modification where the inverted mantle is used, in which the mica disk 26 at the bottom of the l burner 27 has a central aperture, into which is fitted a tube 28 projecting downward and provided with lateral pins 29. These pins serve to support the inverted mantle. A

cluster o f lamps constructed on the principle of Fig.` 1 is shown in Figs. 6 and 7. In this form of lamp,l it is very advantageous to remove the usual gallery or support for the chimney, that is located at the lower portion of the chimney adjacent the lower portion of the mantle, in order to prevent any obstruction to the rays of light transmitted downward. To overcome such difficulty, means are provided for supporting the chimney at its upper portion, or above the burner. As shown in Figs. l, 2 and 6, an upright support 8() extends upward from the burner tube and carries an arm or ring 31 that engages the chimney at its upper portion, and by which the chimney is solely supported. Furthermore, such an arrangement of the chimney permits free access of the air to the outside of the mantle at its lower portion, and therefore an even draft is provided and the mantle will burn uniformly.

In the arrangement shown in Fig. 5, the vertical mixingtube 35 has an addition to the connecting tube l2 supporting the burner 27, a second transverse tube 36 supporting a burner 37 similar to the burner 27. Obviously a greater number of burners could be connected withthe upright mixing tube 35 projecting radially therefrom in the same manner. And the form of burner 22 shown'in Fig. 3 could be used for two or more lamps carried by a single mixing tube in the same manner as shown in this figure. Furthermore, the upright support 30 can be used with this upright burner as shown in Fig. 1, and a plurality of chimney supports 31 would extend radially from the upright member 33 to support the chimneys in the same manner for each `of the lamps.

-V Having thus described my invention, I

claim:

l. A burner for an incandescing mantle ycomprising 'a mixing tube, a tubular mantle supporting member having the mixing tube transversely connected therewith by which the supporting member is supported in a vertical position, means for securing a mantle at one end of the vertical tubular member, and a transparent diaphragm supported at the other end of the vertical member whereby the light rays from the mantle at one end of the member are projected through the other end of the member.

2. In a burner for incandescing mantles,

a mixing tube, a tubular member having the mixing tube transversely connected therewith by which the member is supported in a vertical position, each end of the member being provided with means for supporting a mantle, and a diaphragm of transparent material, each end of the member being arranged to have the diaphragm removably' secured thereto.

3. A burner for an incandescing mantle comprising -a mixing tube, a tubular member having the mixing tube transversely connected therewith by which themember is supported in a vertical position, means for securing a mantle at one end of the vertical tubular member, and a transparent diaphragm supported at the other end of the vertical member whereby the light rays from the mantle at one end ofthe member are projected through the other end ofthe member.

4. In a burner for incandescing mantles, a mixing tube, a tubular member having the mixing tube transversely connected therewith by which the member is supported in a vertical position, each end of the member being provided with means for supporting a mantle, and a diaphragm of transparent material, each end of the member being arranged to have the diaphragm removably secured thereto.

5. A burner for incandescing mantles comprising a mixing tube, a tubular member having the mixing tube transversely connected therewith by which the member is supported in a vertical position, each end of the member being provided with means for supporting a mantle, and a valve of transparent material in the member in proximity to the transverse tube and organized to direct the gas mixture to either end ofthe tube or to both ends according to its position of adjustment. 6. A burner for an incandescing mantle, comprising a mixing tube, a tubular supporting member having a transverse tube connecting with the mixing tube by which the member is supported in a vertical position, means for securing a mantle at one end of the vertical tubular member, a transparent diaphragm supported .at the other end of the vertical member whereby the light rays from the mantle at one end ofthe member are projected through the other end of the member, a supporting member extending upwardly and connected with the transverse tube, anda member carried by the supporting member engaging with the chimney at its upper portion to suspendl the chimney at its upper part only, permitting free and unobstructed downward transmission of the light.

7. In a burner for an incandescing mantle comprising a tubular mantle supporting member having a transverse mixing tube connecting therewith by which the member is supp orted in a vertical position, means for securing a mantle at one end of the vertical tubular member, a transparent diaphragm supported at the other end of the vertical member whereby the light rays from the mantle at one end of the member are projected through the other end of the member, a supporting member extending upwardly and .connected with the transverse tube, an upright support offset from the lamp and a member carried by the support for engaging the chimney at itsA upper portion to suspend the chimney by its upper part only, permitting the free and unob'lsltructed downward transmission of the li t.

g8. A burner for an incandescing mantle comprising an upright mixing tube, a tubular member, a tube transversely connecting the tubular member with the mixing tube by which the tubular member is supported in a vertical position, each end of the vertical member being provided with meansfor supporting a mantle, and organized to permit transmission of light entirely through the vertical tubular member.

9. In a burner for incandescing mantles, a mixing tube; a tubular member having the mixing tube transversely connecting therewith by which the tubular member is su ported in a vertical position, each end of tllie member being provided with means for supporting a mantle, and an adjustable valve in the tubular member at its connection with the mixing tube organized to direct the gas mixture from the mixing tube to either end of the tube or to both ends of the tube according to its position of adjustment.

l0. ln a burner for incandescing mantles, a vertical mixing tube, a tubular member, and a tube connecting the mixing tube with the tubular member to support the tubular memberv in a vertical position, each end of the tubular member being provided with means for supporting a mantle, and an adjustable valve in the tubular member in proximity to said transverse tube organized to direct the gaseous mixture from the transverse tube, to either end of the tubular member or to both ends thereof according to its position of adjustment.

Signed at Nos. 9-15 Murray street, New York, N. Y., this 3rd day of May, 1907.

AMBROSE G. FELL. Witnesses:

WILLIAM H. REID, C. A. WEED. 

